openai/gpt-oss-20b
LM-STUDIO GGUFgpt-oss · 20B · MXFP4
Nov 9, 2026 · Apple M3 Max
gpt-oss:120b
OLLAMA GGUFgptoss · 116.8B · MXFP4
Oct 2, 2026 · Cortex-X925
Global Score
91 vs 83
Hardware Fit
90 vs 64
Quality Score
91 vs 91
Hardware
openai/gpt-oss-20b gpt-oss:120b
MachineMacBook ProNVIDIA NVIDIA_DGX_Spark
CPUApple M3 MaxCortex-X925
Cores1620
RAM128 GB122 GB
GPUApple M3 MaxDevice 2e12
OSmacOS 27.2Ubuntu 24.04.5 LTS
Archarm64arm64
Power Modebalancedperformance
Performance
openai/gpt-oss-20b gpt-oss:120b
Tokens/sec95.128.6
First chunk3 ms422 ms
TTFT2.5 s2.5 s
Load time9.2 s9.9 s
Memory usage0.0 GB60.1 GB
Memory %0%49%
HW Fit Score Breakdown
openai/gpt-oss-20b
Speed
50/50
TTFT
10/20
Memory
30/30
gpt-oss:120b
Speed
30/50
TTFT
9/20
Memory
25/30
Quality
openai/gpt-oss-20b
Reasoning
18/20
Coding
15/20
Instruction
18/20
Structured
15/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong
gpt-oss:120b
Reasoning
19/20
Coding
19/20
Instruction
14/20
Structured
14/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Adequate Structured Output: Strong Math: Strong Multilingual: Strong
Run yours and compare
$
npm install -g metrillm@latest$
metrillmRequires Node 20+ and Ollama or LM Studio running
Or run without installing: npx metrillm@latest